Impingement
This common and painful shoulder condition can be caused by repetitive shoulder movements especially overhead. It is associated with aging and can take weeks to months to improve.
Tendonitis
This can result from overuse activities like throwing or overhead lifting. While tendonitis can resolve within a short period, pain from damaged tissue associated with tendinopathy can last months.
Calcific Tendonitis
Sometimes a hard calcium deposit can build up in a tendon causing pressure and pain. Pain can come on suddenly and pain associated with this condition can be severe.
Shoulder Instability
An injury to the shoulder that stretches or tears the ligaments and capsule of the shoulder can result in instability. This can create a sensation that the shoulder is coming out of the socket.
Rotator Cuff Tear
This injury is painful, can cause night pain, and is more common after age 50. Pain and weakness with overhead lifting and resisted external rotation of the arms are associated with this condition.
Labral Tear
Sometimes an injury like bracing for a fall can result in a labral tear. The labrum can be vulnerable to overuse like repetitive weight training, throwing, and wear and tear associated with certain types of work.
Frozen Shoulder
This should be considered if the shoulder is painful and stiff. Some medical conditions like diabetes have been associated with this condition. It can sometimes take months for this problem to improve.
Clavicle Fracture
This bone runs along the upper front of the chest and shoulder. It connects the sternum area of the chest to the shoulder. Falls, bike accidents, and other sports accidents can cause this injury.